<template>
  <div>
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>权限管理</el-breadcrumb-item>
      <el-breadcrumb-item>角色列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 添加角色按钮区域 -->
    <el-card>
      <el-row>
        <el-col>
          <el-button type="primary">新增角色</el-button>
        </el-col>
      </el-row>
      <!-- 角色列表区域 -->
      <el-table :data="rolelist" border stripe>
        <!-- 展开列 -->
        <el-table-column type="expand" label>
          <template slot-scope="scope">
            <el-row
              :class="['bdbottom' , i1 === 0 ? 'bdtop':'', 'vcenter']"
              v-for="(item1, i1) in scope.row.children"
              :key="item1.id"
            >
              <el-col :span="5">
                <el-tag closable @close="removeRightById(scope.row,item1.id)">{{item1.authName}}</el-tag>
                <i class="el-icon-caret-right"></i>
              </el-col>
              <el-col :span="19">
                <el-row
                  :class="[i2 === 0 ? '' : 'bdtop', 'vcenter']"
                  v-for="(item2, i2) in item1.children"
                  :key="item2.id"
                >
                  <el-col :span="6">
                    <el-tag
                      type="success"
                      closable
                      @close="removeRightById(scope.row,item2.id)"
                    >{{item2.authName}}</el-tag>
                    <i class="el-icon-caret-right"></i>
                  </el-col>
                  <el-col :span="18">
                    <el-tag
                      type="warning"
                      v-for="(item3) in item2.children"
                      :key="item3.id"
                      closable
                      @close="removeRightById(scope.row,item3.id)"
                    >{{item3.authName}}</el-tag>
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-table-column>
        <!-- 索引列 -->
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="roleName" label="角色名称"></el-table-column>
        <el-table-column prop="roleDesc" label="角色描述"></el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <el-button size="mini" type="primary" icon="el-icon-edit">编辑</el-button>
            <el-button size="mini" type="danger" icon="el-icon-delete">删除</el-button>
            <el-button
              size="mini"
              type="warning"
              icon="el-icon-setting"
              @click="showSetRightsDialog(scope.row)"
            >分配权限</el-button>
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <el-dialog
      title="分配权限"
      :visible.sync="setRightsDialogVisible"
      width="50%"
      @close="handleDialogClose"
    >
      <el-tree
        ref="tree"
        show-checkbox
        default-expand-all
        :default-checked-keys="defKeys"
        node-key="id"
        :data="rightslist"
        :props="treeProps"
      ></el-tree>

      <span slot="footer" class="dialog-footer">
        <el-button @click="setRightsDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="setRights()">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  props: [],
  data () {
    return {
      rolelist: [],
      rightslist: [],
      setRightsDialogVisible: false,
      defKeys: [],
      treeProps: {
        children: 'children',
        label: 'authName'
      },
      roleId: ''
    }
  },
  mounted () {
    this.getRoleList()
  },
  methods: {
    async getRoleList () {
      const { data: res } = await this.$http.get('roles')
      this.rolelist = res.data
      console.log(res)
    },
    removeRightById (role, rightId) {
      this.$confirm('确认删除', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
        callback: async (action) => {
          if (action === 'confirm') {
            const { data: res } = await this.$http.delete(
              `roles/${role.id}/rights/${rightId}`
            )
            role.children = res.data
            this.$message({
              message: '删除成功',
              type: 'success',
              showClose: true
            })
          } else {
            this.$message({
              message: '已取消删除',
              type: 'info',
              showClose: true
            })
          }
        }
      })
    },
    async showSetRightsDialog (role) {
      this.roleId = role.id
      const { data: res } = await this.$http.get('rights/tree')
      console.log(res)
      this.rightslist = res.data
      this.getKeys(role, this.defKeys)
      this.setRightsDialogVisible = true
    },
    handleDialogClose () {
      this.defKeys = []
    },
    getCheckedKeys () {
      console.log(this.$refs.tree.getCheckedKeys)
    },
    getKeys (right, arr) {
      if (right.children) {
        right.children.forEach((t) => {
          this.getKeys(t, arr)
        })
      } else {
        arr.push(right.id)
      }
    },
    async setRights () {
      const rids = [
        ...this.$refs.tree.getHalfCheckedKeys(),
        ...this.$refs.tree.getCheckedKeys()
      ]
      await this.$http.post('roles/' + this.roleId + ' /rights', {
        rids: rids.join(',')
      })
      this.getRoleList()
      this.setRightsDialogVisible = false
    }
  }
}
</script>
<style lang="less" scoped>
.el-tag {
  margin: 7px;
}

.bdtop {
  border-top: 1px solid #eee;
}

.bdbottom {
  border-bottom: 1px solid #eee;
}

.vcenter {
  display: flex;
  align-items: center;
}
</style>
